draw.h

   1 /* fbpad's framebuffer interface */
   2
   3 /* fb_mode() interpretation */
   4 #define FBM_BPP(m)      (((m) >> 16) & 0x0f)    /* bytes per pixel (4 bits) */
   5 #define FBM_CLR(m)      ((m) & 0x0fff)          /* bits per color (12 bits) */
   6 #define FBM_ORD(m)      (((m) >> 20) & 0x07)    /* color order (3 bits) */
   7
   8 /* main functions */
   9 int fb_init(char *dev);
  10 void fb_free(void);
  11 unsigned fb_mode(void);
  12 void *fb_mem(int r);
  13 int fb_rows(void);
  14 int fb_cols(void);
  15 void fb_cmap(void);
  16 unsigned fb_val(int r, int g, int b);